Q. How do you write 990 in scientific notation?______×10______
Find Coefficient: What will be the coefficient when 990 is written in scientific notation?We should move the decimal to the right of the last digit and then to the left until the number is greater than or equal to 1 and less than 10.Coefficient: 9.9
Determine Sign of Exponent: Would 990 have a positive or negative exponent when written in scientific notation?990 is a number greater than 10.It can be represented by a positive exponent.
Identify Exponent: What is the exponent when 990 is written in scientific notation?We moved the decimal to the left 2 times to make the coefficient 9.9.990=9.9×102Exponent: 2
Write in Scientific Notation: Fill in the values to write 990 in scientific notation.Substitute 9.9 for the coefficient and 2 for the exponent in the expression a×10b.Scientific notation: 9.9×102
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